Fireproof ventilation opening

Abstract

The utility model provides a fireproof ventilation opening which comprises an air opening mounting ring (2) provided with an air opening outer cover (1) and further comprises an air opening baffle (3), the air opening baffle (3) is arranged at an air outlet (4) of the air opening outer cover (1), a ventilation interval (5) is formed between the peripheral wall of the air opening baffle (3) and the inner peripheral wall of the air opening outer cover (1), and a first heating expansion material (6) is arranged on the upper side of the air opening baffle (3). A first heating expansion material (6) is arranged on the inner circumferential wall of the tuyere mounting ring (2), a second heating expansion material (7) is arranged on the inner circumferential wall of the tuyere mounting ring (2), the first heating expansion material (6) expands to block the ventilation interval (5) and / or block an air inlet (8) in the upper end of the tuyere outer cover (1) when heated, and the second heating expansion material (7) expands to block a ventilation channel (9) of the tuyere mounting ring (2) when heated. The device can be automatically closed to prevent flames and dense smoke from quickly spreading.

Description

Technical Field

[0001] The utility model relates to the technical field of indoor ventilation devices, in particular to a fireproof vent. Background Art

[0002] Ventilation vents are an important component of indoor ventilation systems. For example, in a fresh air system, vents are distributed in various rooms and connected to blowers through pipes to provide air circulation. However, in the event of a fire, there is also the possibility that thick smoke will quickly spread to other rooms through the vents. Therefore, how to better solve this problem needs to be studied.

[0003] Existing vents generally include a vent mounting ring with a vent cover, which is installed in an opening on the roof or side wall. The vent mounting ring is used to connect to the ventilation duct. It can be seen that the vent mounting ring is connected to the ventilation duct, and when thick smoke appears, it will spread rapidly.

[0004] This application proposes a fireproof vent that can automatically close to prevent flames and smoke from spreading rapidly when a fire occurs. Utility Model Content

[0005] The utility model provides a fireproof vent which can be automatically closed when a fire occurs to prevent the flame and thick smoke from spreading rapidly.

[0006] In order to achieve the above-mentioned purpose, the embodiments of the present invention adopt the following technical solutions:

[0007] A fireproof vent includes an vent mounting ring provided with an vent outer cover, and also includes an vent baffle, which is arranged at the air outlet of the vent outer cover, and a ventilation gap is formed between the peripheral wall of the vent baffle and the inner peripheral wall of the vent outer cover. A first heat-expandable material is provided on the upper side of the vent baffle, and a second heat-expandable material is provided on the inner peripheral wall of the vent mounting ring. When heated, the first heat-expandable material expands to block the ventilation gap and / or the air inlet at the upper end of the vent outer cover, and the second heat-expandable material expands to block the ventilation channel of the vent mounting ring when heated.

[0008] In some embodiments, the air vent mounting ring is sleeved on the air vent outer cover up and down, the upper end of the air vent outer cover extends toward the inner side of the air vent mounting ring, and a gap is formed between the outer peripheral wall of the air vent outer cover located on the upper end side and the inner peripheral wall of the opposite air vent mounting ring, the lower end of the second heat expansion material is higher than the upper end of the gap or the lower end of the second heat expansion material extends downward to the gap or the lower end of the second heat expansion material extends downward and is lower than the gap.

[0009] In some embodiments, the upper end of the tuyere outer cover extends toward the inner side of the tuyere mounting ring and gradually shrinks.

[0010] In some embodiments, the upper end of the tuyere cover is provided with a bracket located on the upper side of the tuyere baffle, and the bracket is connected to the tuyere baffle via a suspension rod.

[0011] In some embodiments, the suspension rod is configured as a screw rod, and an adjusting nut is connected to the screw rod, and the adjusting nut is used to adjust the height of the screw rod relative to the bracket.

[0012] In some embodiments, the air vent baffle is provided with a basin-shaped recess facing the air inlet at the upper end of the air vent outer cover, and the first heat-expandable material is provided in the basin-shaped recess.

[0013] In some embodiments, the tuyere cover includes an axial portion and an annular recess located circumferentially of the axial portion. The axial portion is provided with an axial through hole, and the upper end of the axial through hole serves as an air inlet of the tuyere cover.

[0014] In some embodiments, a sealing ring is provided on the annular end surface of the lower end of the tuyere mounting ring.

[0015] After adopting the above structure, compared with the prior art, the utility model has the following advantages:

[0016] In the present disclosure, when a fire occurs, as the temperature rises, the first heat-expanding material and the second heat-expanding material will expand. If the fire is indoors, since the air outlet and the air outlet baffle of the air vent cover are located on the indoor side, the temperature is most obviously felt. Then the first heat-expanding material quickly expands to block the ventilation gap and / or the air inlet at the upper end of the air vent cover. At the same time, since the second heat-expanding material will also expand during the temperature rise process, it will further expand to block the ventilation channel of the air vent mounting ring. Therefore, when a fire occurs, it can automatically close to avoid the rapid spread of flames and thick smoke. In addition, it has a better closing effect and effectively blocks flames and thick smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a fire vent from a bottom perspective.

[0018] Figure 2 It is a three-dimensional schematic diagram of a fireproof vent from an upper side perspective.

[0019] Figure 3 A top view of a fire vent.

[0020] Figure 4 It is a schematic cross-sectional view along AA direction.

[0021] Figure 5 It is a sectional view along the BB direction.

[0022] Figure 6 Schematic diagram of an explosion of a fireproof vent.

[0023] Figure 7 The present invention is a three-dimensional schematic diagram of an air outlet cover of a fireproof vent.

[0024] Explanation of the reference numerals: 1-air vent cover, 2-air vent mounting ring, 3-air vent baffle, 4-air outlet, 5-ventilation interval, 6-first heat-expanding material, 7-second heat-expanding material, 8-air inlet, 9-ventilation channel, 10-interval, 11-bracket, 12-suspender, 13-adjusting nut, 14-basin-shaped depression, 15-axial portion, 16-annular recess, 17-axial through hole, 18-sealing ring, 19-screw hole. DETAILED DESCRIPTION

[0025] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0026] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0027] The present invention provides a fireproof vent, combined with Figures 1 to 7 The fireproof vent includes an vent mounting ring 2 provided with an vent outer cover 1, and also includes an vent baffle 3, which is arranged at the air outlet 4 of the vent outer cover 1, and a ventilation gap 5 is formed between the peripheral wall of the vent baffle 3 and the inner peripheral wall of the vent outer cover 1. A first heat-expandable material 6 is provided on the upper side of the vent baffle 3, and a second heat-expandable material 7 is provided on the inner peripheral wall of the vent mounting ring 2. When heated, the first heat-expandable material 6 expands to block the ventilation gap 5 and / or blocks the air inlet 8 at the upper end of the vent outer cover 1. When heated, the second heat-expandable material 7 expands to block the ventilation channel 9 of the vent mounting ring 2.

[0028] like Figure 4 、 5As shown, the tuyere mounting ring 2 is sleeved with the tuyere outer cover 1 up and down, the upper end of the tuyere outer cover 1 extends toward the inner side of the tuyere mounting ring 2, and a gap 10 is formed between the outer peripheral wall of the tuyere outer cover 1 located on the upper end side and the inner peripheral wall of the opposite tuyere mounting ring 2, the lower end of the second thermal expansion material 7 is higher than the upper end of the gap 10 or the lower end of the second thermal expansion material 7 extends downward to the gap 10 or the lower end of the second thermal expansion material 7 extends downward and is lower than the gap 10. In this case, the lower end of the second thermal expansion material 7 is higher than the upper end of the gap 10.

[0029] In some embodiments, as Figure 2 、 4 As shown in Figures 5 and 6, the upper end of the tuyere cover 1 is provided with a bracket 11 located on the upper side of the tuyere baffle 3, and the bracket 11 is connected to the tuyere baffle 3 via a suspension rod 12.

[0030] Furthermore, the suspension rod 12 is configured as a screw, connected to an adjustment nut 13 for adjusting the height of the screw relative to the bracket 11. This allows the height of the tuyere baffle 3 to be adjusted. In this example, the lower end of the screw is connected to the inner bottom surface of the tuyere baffle 3, concealed inside the tuyere baffle 3 for a more aesthetically pleasing appearance. The lower end of the screw can be connected to the inner bottom surface of the tuyere baffle 3 by welding.

[0031] When installing the present invention, for example, when installing it on a suspended ceiling, in order to ensure the connection and sealing between the annular end surface of the lower end of the tuyere mounting ring 2 and the upper side surface of the suspended ceiling, the mounting structure can be referred to as follows: first, a through hole is set on the installation ceiling, and then the tuyere mounting ring 2 is set on the upper side of the suspended ceiling. The annular end surface of the lower end of the tuyere mounting ring 2 is provided with a sealing ring 18. This sealing ring 18 is used to seal the gap between the annular end surface of the lower end of the tuyere mounting ring 2 and the upper side surface of the suspended ceiling. In order to fix it reliably, self-tapping screws can be used for fixing, for example, Figure 6 As shown, a plurality of screw holes 19 are provided on the circumferential surface of the lower end of the tuyere mounting ring 2 .

[0032] In this example, the sealing ring (18) is a sponge ring, which has a certain sealing performance and also has excellent buffering performance and elasticity.

[0033] In some embodiments, as Figure 4 、 5 As shown, the upper end of the tuyere outer cover 1 extends toward the inner side of the tuyere mounting ring 2 and gradually shrinks. This is conducive to blocking.

[0034] In some embodiments, as Figure 4 、 5As shown in Figures 6 and 7, the tuyere baffle 3 is provided with a basin-shaped recess 14 facing the air inlet 8 at the upper end of the tuyere outer cover 1, and the first thermally expandable material 6 is disposed in the basin-shaped recess 14. In this way, the basin-shaped recess 14 will form an inner peripheral wall, and the inner peripheral wall will have an upward guiding effect, thereby making it more convenient for blocking.

[0035] In some embodiments, as Figure 4 、 5 As shown in Figures 6 and 7, the tuyere outer cover 1 includes an axial portion 15 and an annular recess 16 located circumferentially of the axial portion 15. The axial portion 15 is provided with an axial through hole 17, and the upper end of the axial through hole 17 serves as the air inlet 8 of the tuyere outer cover 1.

[0036] When understanding the present invention, if necessary, the above structure can refer to other embodiments / appendices. Figure 1 And understand, no further elaboration here.

[0037] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that a person skilled in the art can conceive within the technical scope disclosed in the present disclosure should be included within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A fireproof vent, comprising a vent mounting ring (2) provided with a vent cover (1), characterized in that: The invention also includes an air vent baffle (3), which is arranged at the air outlet (4) of the air vent outer cover (1), and a ventilation gap (5) is formed between the peripheral wall of the air vent baffle (3) and the inner peripheral wall of the air vent outer cover (1). A first heat-expandable material (6) is provided on the upper side of the air vent baffle (3), and a second heat-expandable material (7) is provided on the inner peripheral wall of the air vent mounting ring (2). When heated, the first heat-expandable material (6) expands to block the ventilation gap (5) and / or the air inlet (8) at the upper end of the air vent outer cover (1), and when heated, the second heat-expandable material (7) expands to block the ventilation channel (9) of the air vent mounting ring (2).

2. The fireproof vent according to claim 1, characterized in that: The tuyere mounting ring (2) is sleeved with the tuyere outer cover (1) in an upper and lower manner, the upper end of the tuyere outer cover (1) extends toward the inner side of the tuyere mounting ring (2), and a gap (10) is formed between the outer peripheral wall of the tuyere outer cover (1) located on one side of the upper end and the inner peripheral wall of the opposite tuyere mounting ring (2), the lower end of the second heat-expanding material (7) is higher than the upper end of the gap (10), or the lower end of the second heat-expanding material (7) extends downward to the gap (10), or the lower end of the second heat-expanding material (7) extends downward and is lower than the gap (10).

3. The fireproof vent according to claim 1 or 2, characterized in that: The upper end of the air outlet outer cover (1) extends toward the inside of the air outlet mounting ring (2) and gradually shrinks.

4. The fireproof vent according to claim 3, characterized in that: The upper end of the tuyere outer cover (1) is provided with a bracket (11) located on the upper side of the tuyere baffle (3), and the bracket (11) and the tuyere baffle (3) are connected via a suspension rod (12).

5. The fireproof vent according to claim 4, characterized in that: The suspension rod (12) is configured as a screw rod, and an adjusting nut (13) is connected to the screw rod. The adjusting nut (13) is used to adjust the height of the screw rod relative to the bracket (11).

6. The fireproof vent according to claim 1, characterized in that: The air vent baffle (3) is provided with a basin-shaped recess (14) facing the air inlet (8) at the upper end of the air vent outer cover (1), and the first heat-expandable material (6) is provided in the basin-shaped recess (14).

7. The fireproof vent according to claim 1 or 2, characterized in that: The air vent outer cover (1) comprises an axial portion (15) and an annular recess (16) located circumferentially of the axial portion (15); the axial portion (15) is provided with an axial through hole (17); the upper end of the axial through hole (17) serves as an air inlet (8) of the air vent outer cover (1).

8. The fireproof vent according to claim 1, characterized in that: The annular end surface of the lower end of the air outlet mounting ring (2) is provided with a sealing ring (18).

9. The fireproof vent according to claim 8, characterized in that: The sealing ring (18) adopts a sponge ring.

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